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The SHTWFL (Shuanghe Traveling Wave Fault Location System) is a traveling wave fault location system consisting of the master station at the dispatch center, the transmission line traveling wave fault location recording device at the substation, and the communications network. The master station receives fault traveling wave data, which is analyzed automatically or by operation personnel with the aid of computers; it saves fault records and configures, manages, and maintains the system. The traveling wave fault location device detects, records, temporarily saves, and uploads traveling wave and switch data; it can also have an industrial PC configured as its backend to complete the function similar to that of the master station. The communications network is in the mode of a master station and multiple slave stations, supporting Ethernet networking.

? High-precision: The deviation in traveling wave fault location does not exceed 150 meters.
? High reliability: Precision is not affected by factors such as fault resistance, load current, fault location, and fault types.
? Simple maintenance: At the master station, one can conveniently monitor the operational status of various fault location devices.
? Applicable to various types of power transmission lines
? Compatible with both the smart and traditional substations
? Traveling wave fault location solution based on the entire power transmission network

? Function of displaying in real time traveling wave information and fault location
? Function of topology editing
? Function of statistics and inquiry on traveling wave information as well as switch actions, historical faults, and fault information
? Function of manual velocity measurement
? Function of remote maintenance